Fig. 3From: Finite element mechanical analysis of ipsilateral approach and contralateral approach in unilateral bilateral endoscopic spine surgeryThe schematic of the surgical. a Ipsilateral approach surgical excision of armpit-type LDH. b Contralateral approach surgical excision of armpit-type LDH. c Ipsilateral approach surgical excision of periradicular-type LDH. d Contralateral approach surgical excision of periradicular-type LDH. e Ipsilateral approach surgical excision of shoulder-type LDH. f Contralateral approach surgical excision of shoulder-type LDHBack to article page